501 to 525 of 857 JavaScript Jobs in London

4+ years of hands-on experience designing and implementing robust CMDB solutions, leveraging integrations, Discovery, and Service Mapping. Proven experience in platform upgrades, performance optimization, and maintenance Proficiency in JavaScript and ServiceNow development, including server and client-side scripting, security, and debugging Experience with ServiceNow integrations using REST, GraphQL, IntegrationHub, security configuration, and third-party apps ServiceNow certifications are highly More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

on in with the implementation of advanced technical SEO directly on client sites such as migrations, structured mark up, HTML/CSS changes, site speed and core web vitals, JavaScript SEO, log file analysis and more Be able to effectively audit a website, conduct keyword research/mapping, conduct analytics audits, set up tracking using UA/GA4/GTM More ❯

across tens of thousands of schools. The program combines writing challenges, character creation, and curated tutor feedback to boost engagement and learning. Role Overview As a Senior Full‐Stack JavaScript Developer , you will: Design, build, and enhance scalable frontend and backend systems within the core product (e.g. writing platform, dashboards, games, tutor and admin interfaces) Plan architecture and technical work … across the JavaScript stack Develop clean, maintainable, and testable code using modern practices and frameworks Collaborate closely with product/design/education teams to ensure features support pedagogical goals Monitor and optimize performance, reliability, and accessibility Participate in planning, code reviews, deployment workflows, and continuous integration pipelines Lead projects and record progress on project management systems, as well as … in meetings with the team Role Responsibilities Architect and implement new full‐stack features in JavaScript across frontend and backend layers Maintain and extend scalable APIs and microservices Optimize UI/UX for high interactivity, creativity tools, and responsive performance Drive best practices including code reviews, automated tests (unit/integration), documentation Ensure data privacy, performance, and reliability in line More ❯

across tens of thousands of schools. The program combines writing challenges, character creation, and curated tutor feedback to boost engagement and learning. Role Overview As a Senior Full‐Stack JavaScript Developer , you will: Design, build, and enhance scalable frontend and backend systems within the core product (e.g. writing platform, dashboards, games, tutor and admin interfaces) Plan architecture and technical work … across the JavaScript stack Develop clean, maintainable, and testable code using modern practices and frameworks Collaborate closely with product/design/education teams to ensure features support pedagogical goals Monitor and optimize performance, reliability, and accessibility Participate in planning, code reviews, deployment workflows, and continuous integration pipelines Lead projects and record progress on project management systems, as well as … in meetings with the team Role Responsibilities Architect and implement new full‐stack features in JavaScript across frontend and backend layers Maintain and extend scalable APIs and microservices Optimize UI/UX for high interactivity, creativity tools, and responsive performance Drive best practices including code reviews, automated tests (unit/integration), documentation Ensure data privacy, performance, and reliability in line More ❯

across tens of thousands of schools. The program combines writing challenges, character creation, and curated tutor feedback to boost engagement and learning. Role Overview As a Senior Full‐Stack JavaScript Developer , you will: Design, build, and enhance scalable frontend and backend systems within the core product (e.g. writing platform, dashboards, games, tutor and admin interfaces) Plan architecture and technical work … across the JavaScript stack Develop clean, maintainable, and testable code using modern practices and frameworks Collaborate closely with product/design/education teams to ensure features support pedagogical goals Monitor and optimize performance, reliability, and accessibility Participate in planning, code reviews, deployment workflows, and continuous integration pipelines Lead projects and record progress on project management systems, as well as … in meetings with the team Role Responsibilities Architect and implement new full‐stack features in JavaScript across frontend and backend layers Maintain and extend scalable APIs and microservices Optimize UI/UX for high interactivity, creativity tools, and responsive performance Drive best practices including code reviews, automated tests (unit/integration), documentation Ensure data privacy, performance, and reliability in line More ❯

across tens of thousands of schools. The program combines writing challenges, character creation, and curated tutor feedback to boost engagement and learning. Role Overview As a Senior Full‐Stack JavaScript Developer , you will: Design, build, and enhance scalable frontend and backend systems within the core product (e.g. writing platform, dashboards, games, tutor and admin interfaces) Plan architecture and technical work … across the JavaScript stack Develop clean, maintainable, and testable code using modern practices and frameworks Collaborate closely with product/design/education teams to ensure features support pedagogical goals Monitor and optimize performance, reliability, and accessibility Participate in planning, code reviews, deployment workflows, and continuous integration pipelines Lead projects and record progress on project management systems, as well as … in meetings with the team Role Responsibilities Architect and implement new full‐stack features in JavaScript across frontend and backend layers Maintain and extend scalable APIs and microservices Optimize UI/UX for high interactivity, creativity tools, and responsive performance Drive best practices including code reviews, automated tests (unit/integration), documentation Ensure data privacy, performance, and reliability in line More ❯

to major venues, and provide simple tools for businesses to reach new audiences. About the Role We’re looking for a Full Stack Developer with several years’ experience in JavaScript and modern framework to join our small team. You’ll build impactful features, grow your skills, and help shape our product in a supportive hybrid role with three days in … Experience & Skills Degree in Computer Science or equivalent 4+ years’ professional full stack development 2+ years’ production experience with Node.js 2+ years’ production experience with React Strong skills in JavaScript/TypeScript (ES modules) Experience building and integrating REST APIs 2+ years’ experience with MySQL and Git 1+ year with Tailwind CSS, Next.js, Express.js, MongoDB, and AWS/GCP High More ❯

to major venues, and provide simple tools for businesses to reach new audiences. About the Role We’re looking for a Full Stack Developer with several years’ experience in JavaScript and modern framework to join our small team. You’ll build impactful features, grow your skills, and help shape our product in a supportive hybrid role with three days in … Experience & Skills Degree in Computer Science or equivalent 4+ years’ professional full stack development 2+ years’ production experience with Node.js 2+ years’ production experience with React Strong skills in JavaScript/TypeScript (ES modules) Experience building and integrating REST APIs 2+ years’ experience with MySQL and Git 1+ year with Tailwind CSS, Next.js, Express.js, MongoDB, and AWS/GCP High More ❯

to major venues, and provide simple tools for businesses to reach new audiences. About the Role We’re looking for a Full Stack Developer with several years’ experience in JavaScript and modern framework to join our small team. You’ll build impactful features, grow your skills, and help shape our product in a supportive hybrid role with three days in … Experience & Skills Degree in Computer Science or equivalent 4+ years’ professional full stack development 2+ years’ production experience with Node.js 2+ years’ production experience with React Strong skills in JavaScript/TypeScript (ES modules) Experience building and integrating REST APIs 2+ years’ experience with MySQL and Git 1+ year with Tailwind CSS, Next.js, Express.js, MongoDB, and AWS/GCP High More ❯

to major venues, and provide simple tools for businesses to reach new audiences. About the Role We’re looking for a Full Stack Developer with several years’ experience in JavaScript and modern framework to join our small team. You’ll build impactful features, grow your skills, and help shape our product in a supportive hybrid role with three days in … Experience & Skills Degree in Computer Science or equivalent 4+ years’ professional full stack development 2+ years’ production experience with Node.js 2+ years’ production experience with React Strong skills in JavaScript/TypeScript (ES modules) Experience building and integrating REST APIs 2+ years’ experience with MySQL and Git 1+ year with Tailwind CSS, Next.js, Express.js, MongoDB, and AWS/GCP High More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes … Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore … and the other two work from home. When in the office you can enjoy the onsite gym, barista coffee and free breakfast. About you: You have strong front end JavaScript development skills You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine You're product focussed with good business acumen You have a good More ❯

Senior Front End Developer/Engineer (JavaScript Vue.js) London to £100k Do you enjoy working with a range of programming languages? You could be progressing your career in a senior, hands-on Front End Developer role at a scale-up tech company, that enables smart matching for commercial van drivers and consumers, via job bidding and route optimisation, streamlining processes … Agile technology team to design and develop, troubleshoot and solve complex software issues to help scale and future proof the business. You'll focus on front end components using JavaScript and Vue.js, there's a range of other tech in the stack (TypeScript, Node.js, Java, Python and of course a bit of legacy PHP!), you'll be encouraged to explore … and the other two work from home. When in the office you can enjoy the onsite gym, barista coffee and free breakfast. About you: You have strong front end JavaScript development skills You have experience with JavaScript frameworks they use Vue.js but Angular or React experience is fine You're product focussed with good business acumen You have a good More ❯

environment where autonomy and technical input are both valued and encouraged. What you’ll be working with: PHP (Laravel) and MVC frameworks MySQL Backend API development (REST) HTML, CSS, JavaScript, Bootstrap Vue.js or similar JavaScript frameworks Azure DevOps, CI/CD pipelines Linux-based environments What we’re looking for: 3–6 years’ experience in a full stack or back … end developer role Strong professional background with PHP, Laravel, and MySQL Skilled in HTML, CSS, JavaScript, and modern frontend frameworks Familiar with cloud-based tools and version control using Azure DevOps Comfortable working both autonomously and within a collaborative team Proactive, consultative approach to problem-solving Nice to have: Experience with React, Node.js, Angular, or additional modern JS frameworks This More ❯

able to join within the week. Responsibilities Experience with Qlik or other low code platfroms such as Webflow Doing low code integrations Need to be able to write code - Javascript (preferred), Python or PHP Client facing experience Need to speak to users/understand requirements Managing and building integrations based on customer requests Location Location - Central London - 2/ More ❯

mentoring less experienced team members Desirable Skills and Experience Exposure to SAP technical modules like Basis, Security, SAP PI etc. Exposure to SAP Workflows Exposure to programming languages like JavaScript, Groovy Script Behavioural Excellent communication skills (written and oral) and comfortable communicating with both internal and external stakeholders Ability to work well under pressure More ❯

mentoring less experienced team members Desirable Skills and Experience Exposure to SAP technical modules like Basis, Security, SAP PI etc. Exposure to SAP Workflows Exposure to programming languages like JavaScript, Groovy Script Behavioural Excellent communication skills (written and oral) and comfortable communicating with both internal and external stakeholders Ability to work well under pressure More ❯

application. Contribute to architectural decisions to reduce complexity. Work with PostgreSQL databases and support data optimisation. Support asynchronous processing with Celery. Drive the transition toward modern web technologies, including JavaScript-based Experience Required: Proficiency in Python/Django development. Knowledge of relational databases (PostgreSQL). Familiarity with asynchronous tools (Celery). Interest in modernising legacy systems and introducing new web More ❯

managers, and QA teams across global locations ✅ Key Requirements 3+ years of experience in mobile application testing Proven track record testing native iOS and Android apps Strong skills in JavaScript or TypeScript Proficient with WebdriverIO and Appium for test automation 🎁 Benefits Up to £100k base salary Hybrid working (3 days in-office, London) Private healthcare Generous holidays & 💼 pension scheme Apply More ❯

managers, and QA teams across global locations ✅ Key Requirements 3+ years of experience in mobile application testing Proven track record testing native iOS and Android apps Strong skills in JavaScript or TypeScript Proficient with WebdriverIO and Appium for test automation 🎁 Benefits Up to £100k base salary Hybrid working (3 days in-office, London) Private healthcare Generous holidays & 💼 pension scheme Apply More ❯

managers, and QA teams across global locations ✅ Key Requirements 3+ years of experience in mobile application testing Proven track record testing native iOS and Android apps Strong skills in JavaScript or TypeScript Proficient with WebdriverIO and Appium for test automation 🎁 Benefits Up to £100k base salary Hybrid working (3 days in-office, London) Private healthcare Generous holidays & 💼 pension scheme Apply More ❯

managers, and QA teams across global locations ✅ Key Requirements 3+ years of experience in mobile application testing Proven track record testing native iOS and Android apps Strong skills in JavaScript or TypeScript Proficient with WebdriverIO and Appium for test automation 🎁 Benefits Up to £100k base salary Hybrid working (3 days in-office, London) Private healthcare Generous holidays & 💼 pension scheme Apply More ❯

and SecOps Solution Certified ServiceNow IRM/SecOps administrator/consultant (this is mandatory) Must have concluded at least 1 lifecycle of ServiceNow IRM/SecOps implementation. Experience in JavaScript, API, Web Services Working knowledge of Vulnerability Mgmt. process & tools ISO/CISA/CISM/CISSP/CRICS (preferred) ServiceNow GRC & SecOps B.E/B.Tech , BCA/MCA ServiceNow More ❯